Developed by Bob Bradshaw of Custom Audio Electronics and Dunlop's Cry baby design team, with the goal of creating a versatile wha-wha with the highest quality components.
Equipped with dual phase inductors to create two distinct sounds and a built-in MXR MC-401 Boost/Linedriver. Select phase and boost on/off with the side-mounted kick switches. The MC-404 has "true bypass", a CTS potentiometer with extra long life and internal potentiometers to fine tune Q value and gain.